I would also love weighting or allocation functionality in the watch list. The neat thing about portfolio 123 is it allows you to easily compare the performance of various watch lists against each other. Unfortunately, this only works for equal weighting. This is still very useful and my favorite feature.
If we use paper accounts for this, we don’t get to see and compare the various strategies within the account easily over various time frames 1D, 1W, !M, 1Y etc. since the performance calculations are only based on when you created the watch list I think (like how you can see in the watchlist page which displays all the watch lists). I wish the system calculated what the performance would have been in the past with the current allocation.
I would also love to compare a watch list against watch list in the charts… for example, use a watch list as a benchmark.